Question

3) How many types of seismic waves? Explain “P” waves.​

Answer 1

There are two broad classes of seismic waves: body waves and surface waves. Body waves travel within the body of Earth. They include P, or primary, waves and S, or secondary, waves. P waves cause the ground to compress and expand, that is, to move back and forth, in the direction of travel.

Answer 2

Explanation: pls follow